US7969406B2 - Backlight driving system for a liquid crystal display device - Google Patents
Backlight driving system for a liquid crystal display device Download PDFInfo
- Publication number
- US7969406B2 US7969406B2 US11/806,732 US80673207A US7969406B2 US 7969406 B2 US7969406 B2 US 7969406B2 US 80673207 A US80673207 A US 80673207A US 7969406 B2 US7969406 B2 US 7969406B2
- Authority
- US
- United States
- Prior art keywords
- color
- voltage
- oleds
- switch unit
- resistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0235—Field-sequential colour display
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2011—Display of intermediate tones by amplitude modulation
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060050480A KR100769445B1 (en) | 2006-06-05 | 2006-06-05 | Backlight driving system for liquid crystal display device |
KR10-2006-0050480 | 2006-06-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20070279376A1 US20070279376A1 (en) | 2007-12-06 |
US7969406B2 true US7969406B2 (en) | 2011-06-28 |
Family
ID=38789521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/806,732 Expired - Fee Related US7969406B2 (en) | 2006-06-05 | 2007-06-04 | Backlight driving system for a liquid crystal display device |
Country Status (2)
Country | Link |
---|---|
US (1) | US7969406B2 (en) |
KR (1) | KR100769445B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120113161A1 (en) * | 2010-11-05 | 2012-05-10 | Youngjun Hong | Stereoscopic Image Display and Power Control Method Thereof |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101146989B1 (en) * | 2010-05-06 | 2012-05-22 | 삼성모바일디스플레이주식회사 | DC-DC converter, Organic electro luminescence Display having the same and driving method thereof |
KR101965892B1 (en) * | 2012-03-05 | 2019-04-08 | 삼성디스플레이 주식회사 | DC-DC Converter and Organic Light Emitting Display Device Using the same |
CN103854596A (en) * | 2012-11-29 | 2014-06-11 | 利亚德光电股份有限公司 | Led display |
CN105895023B (en) * | 2016-06-03 | 2019-03-15 | 深圳市华星光电技术有限公司 | Micro electronmechanical light valve, display screen and display device |
CN208705623U (en) * | 2018-09-27 | 2019-04-05 | 昆山龙腾光电有限公司 | The changeable display device in width visual angle |
KR20210036435A (en) * | 2019-09-25 | 2021-04-05 | 삼성디스플레이 주식회사 | Quantum dot composition, light emitting diode and display device including the same |
KR20220043997A (en) | 2020-09-28 | 2022-04-06 | 삼성디스플레이 주식회사 | Quantum dot composition and method for manufacturing light-emitting device using the same |
US11431917B2 (en) * | 2020-10-12 | 2022-08-30 | Dell Products L.P. | System and method of operating a display associated with an information handling system |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6169528B1 (en) * | 1995-08-23 | 2001-01-02 | Canon Kabushiki Kaisha | Electron generating device, image display apparatus, driving circuit therefor, and driving method |
US6191534B1 (en) * | 1999-07-21 | 2001-02-20 | Infineon Technologies North America Corp. | Low current drive of light emitting devices |
US20020159002A1 (en) * | 2001-03-30 | 2002-10-31 | Koninklijke Philips Electronics N.V. | Direct backlighting for liquid crystal displays |
US6724354B1 (en) * | 1999-06-21 | 2004-04-20 | The Microoptical Corporation | Illumination systems for eyeglass and facemask display systems |
US20040252096A1 (en) * | 2003-05-21 | 2004-12-16 | Der-Jiunn Wang | Dual panel display backlight power controller chip for handheld apparatus |
US20050200312A1 (en) * | 2004-03-15 | 2005-09-15 | Rohm Co., Ltd. | Light emitting element driving device and portable apparatus equipped with light emitting elements |
US20050231459A1 (en) | 2004-04-20 | 2005-10-20 | Sony Corporation | Constant current driving device, backlight light source device, and color liquid crystal display device |
KR20050115043A (en) | 2004-06-03 | 2005-12-07 | 삼성에스디아이 주식회사 | Liquid crystal display device and driving method thereof |
US20070229450A1 (en) * | 2006-03-31 | 2007-10-04 | Casio Computer Co., Ltd. | Driving apparatus and method for driving light emitting elements, and projector |
US20070228504A1 (en) * | 2006-03-31 | 2007-10-04 | Casio Computer Co., Ltd. | Driving apparatus and method for driving light emitting elements, and projector |
US7495397B2 (en) * | 2006-06-01 | 2009-02-24 | Sony Corporation | Drive device for light emitting diode element, light source device, and display |
US7511695B2 (en) * | 2004-07-12 | 2009-03-31 | Sony Corporation | Display unit and backlight unit |
-
2006
- 2006-06-05 KR KR1020060050480A patent/KR100769445B1/en not_active IP Right Cessation
-
2007
- 2007-06-04 US US11/806,732 patent/US7969406B2/en not_active Expired - Fee Related
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6169528B1 (en) * | 1995-08-23 | 2001-01-02 | Canon Kabushiki Kaisha | Electron generating device, image display apparatus, driving circuit therefor, and driving method |
US6724354B1 (en) * | 1999-06-21 | 2004-04-20 | The Microoptical Corporation | Illumination systems for eyeglass and facemask display systems |
US6191534B1 (en) * | 1999-07-21 | 2001-02-20 | Infineon Technologies North America Corp. | Low current drive of light emitting devices |
US20020159002A1 (en) * | 2001-03-30 | 2002-10-31 | Koninklijke Philips Electronics N.V. | Direct backlighting for liquid crystal displays |
US20040252096A1 (en) * | 2003-05-21 | 2004-12-16 | Der-Jiunn Wang | Dual panel display backlight power controller chip for handheld apparatus |
US7157866B2 (en) * | 2004-03-15 | 2007-01-02 | Rohm Co., Ltd. | Light emitting element driving device and portable apparatus equipped with light emitting elements |
US20050200312A1 (en) * | 2004-03-15 | 2005-09-15 | Rohm Co., Ltd. | Light emitting element driving device and portable apparatus equipped with light emitting elements |
US20050231459A1 (en) | 2004-04-20 | 2005-10-20 | Sony Corporation | Constant current driving device, backlight light source device, and color liquid crystal display device |
KR20060045573A (en) | 2004-04-20 | 2006-05-17 | 소니 가부시끼 가이샤 | Constant current driving device, backlight light source device, and color liquid crystal display device |
KR20050115043A (en) | 2004-06-03 | 2005-12-07 | 삼성에스디아이 주식회사 | Liquid crystal display device and driving method thereof |
US7511695B2 (en) * | 2004-07-12 | 2009-03-31 | Sony Corporation | Display unit and backlight unit |
US20070229450A1 (en) * | 2006-03-31 | 2007-10-04 | Casio Computer Co., Ltd. | Driving apparatus and method for driving light emitting elements, and projector |
US20070228504A1 (en) * | 2006-03-31 | 2007-10-04 | Casio Computer Co., Ltd. | Driving apparatus and method for driving light emitting elements, and projector |
US7508143B2 (en) * | 2006-03-31 | 2009-03-24 | Casio Computer Co., Ltd. | Driving apparatus and method for driving light emitting elements, and projector |
US7495397B2 (en) * | 2006-06-01 | 2009-02-24 | Sony Corporation | Drive device for light emitting diode element, light source device, and display |
Non-Patent Citations (1)
Title |
---|
Ogawa et al. SID (Society for Information Display), 1999, Digest, pp. 1098-1101, "Field-Sequential-Color LCD Using Switched Organic EL Backlighting". * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120113161A1 (en) * | 2010-11-05 | 2012-05-10 | Youngjun Hong | Stereoscopic Image Display and Power Control Method Thereof |
US8810610B2 (en) * | 2010-11-05 | 2014-08-19 | Lg Display Co., Ltd. | Stereoscopic image display and power control method thereof |
Also Published As
Publication number | Publication date |
---|---|
KR100769445B1 (en) | 2007-10-22 |
US20070279376A1 (en) | 2007-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAMSUNG SDI CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PARK, JUNG KOOK;REEL/FRAME:019426/0131 Effective date: 20070601 |
|
AS | Assignment |
Owner name: SAMSUNG MOBILE DISPLAY CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAMSUNG SDI CO., LTD.;REEL/FRAME:021998/0771 Effective date: 20081212 Owner name: SAMSUNG MOBILE DISPLAY CO., LTD., KOREA, REPUBLIC Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAMSUNG SDI CO., LTD.;REEL/FRAME:021998/0771 Effective date: 20081212 Owner name: SAMSUNG MOBILE DISPLAY CO., LTD.,KOREA, REPUBLIC O Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAMSUNG SDI CO., LTD.;REEL/FRAME:021998/0771 Effective date: 20081212 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20150628 |